Abstract:
PROBLEM TO BE SOLVED: To prevent lubricating oil from running out, operate for a long time and prevent heat caused by agitation resistance of grease from generating remarkably when rotating an outer ring at a high speed. SOLUTION: Double row rolling bearing used for outer ring rotation comprises a pocket formed member 5 having a lubricant pocket 6 between both rolling elements 4 and 4. A lubricant 11 such as grease or solid lubricant is sealed into the lubricant pocket 6. The pocket formed member 5, which is a ring member of channel section opening to inside diameter side, has a grease hole 7 at the side of the pocket 6. In the pocket formed member 5, a detent bolt 9, the top thereof engaging in a through hole 8 formed on the base of the member, is fixed to a screw hole 10 formed on a outer ring 2 so as to be jammed. COPYRIGHT: (C)1999,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling bearing easy in management, and improving maintainability. SOLUTION: This rolling bearing 11 has an outer ring 12, and inner ring 13, a cylindrical roller 14 arranged between the outer ring 12 and the inner ring 13, a cage 15 holding the cylindrical roller 14 and a resin seal 16a including a grease pocket for sealing grease 17 in its inside. Here, an IC tag 20 storing associated information on the rolling bearing 11 is arranged on the seal 16a. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling bearing enabling the easy detection of the state thereof and therearound without requiring a complicated mechanism. SOLUTION: The rolling bearing 11 comprises an outer ring 12, an inner ring 13, cylindrical rollers 14 disposed between the outer ring 12 and the inner ring 13, a cage 15 holding the cylindrical rollers 14, a pair of seals 16a, 16b including grease pockets 22a which are filled with a grease 17, etc. The seals 16a, 16b are axially projected from the outer ring 12 and the inner ring 13. A clearance 27 is formed between the seal 16a and a spindle 26. A sensor 20 is installed on the inner diameter surface 21 side of the seal 16a. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a roller bearing capable of effectively preventing formation of shaft trace caused by interference of an inner ring and a shaft. SOLUTION: A flange portion of an inner ring member 11 used in this roller bearing has a thin portion 13 having a relatively thin radial thickness, at its end face side and a thick portion 14 having a relatively thick radial thickness, at its central side, and has a contact portion 15 fitted to an axle on its central portion, a non-contact portion 16 radially separated from the axle on its outer edge portion, and a ridge portion 17 positioned on the boundary of the contact portion 15 and the non-contact portion 16 on its internal circle face. An axial width L 1 from an end face 12 of the inner ring member 11 of the thin portion 13 and an axial distance L 2 from the end face 12 of the inner ring member 11 to the ridge portion 17 satisfies the relationship of L 1 >L 2 . COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling bearing having excellent maintainability and increased reliability in production. SOLUTION: This rolling bearing 11 comprises an outer ring 12, an inner ring 13, cylindrical rollers 14 disposed between the outer ring 12 and the inner ring 13, a cage 15 holding the cylindrical rollers 14, and a pair of resin seals 16a, 16b. A transparent part 20a through which the internal state is visually observed is formed in the lateral face 21a of a grease pocket 22a formed in the seal 16a. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling bearing causing no environmental pollution without containing noxious substance. SOLUTION: A cage for the rolling bearing is made of a cold rolled steel plate to hold rolling elements of the rolling bearing. The cold rolled steel plate surface of the cage is subjected to at least one kind of surface treatment selected out of electrogalvanizing, electrotinning, tin-zinc alloy electroplating, zinc-iron alloy electroplating and zinc-nickel alloy electroplating treatment and further subjected to trivalent chromating. The rolling bearing uses the cage for the rolling bearing. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a bearing with a sealing device capable of exercising stable sealing performance for a long period even in temperature rise in accompany with the operation of the bearing. SOLUTION: The sealing device 30 has a rubber seal main body 34, the seal main body 34 has a disc part 35 extended in the radial direction, a main lip 38 axially expanded from an inner-diameter end part of the disc part 36, and a dust lip 40 expanded to a side opposite to the main lip 38 from the inner-diameter end part of the disc part 36, a slit 44 is axially penetrated through the disc part 36, and the dust lip 40 is provided with a rib 48. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling bearing with an elongated maintenance cycle by providing a structure capable of enclosing a suitable amount of grease and by making a bearing inside space capacity definite. SOLUTION: The cylindrical roller bearing 41 is provided with an inner ring 42, an outer ring 43 having an axial direction width identical with the inner ring 42 and having an insulating layer on an outside diameter face and an end face, a cylindrical roller 44 as a rolling element arranged between the inner ring 42 and the outer ring 43, a retainer 45 retaining a space of the cylindrical roller 44, and a seal 46 as a sealing member on both ends of the inner ring 42 and the outer ring 43 not protruding from the end face. A bearing volume V 3 of the roller bearing and the inside space capacity C 3 of the roller bearing are set to be within a range of 0.24≤C 3 /V 3 ≤0.30. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To solve problems that (1) enclosed grease in a bearing is discharged in an early stage to a bearing end part to prohibit secure lubrication life as less grease is left in the bearing, and that (2) a quantity of grease discharged and held at the bearing end part is likely to cause leak of grease, and cause heat generation at a seal lip as the grease presses the seal lip. SOLUTION: This bearing with a sealing is provided with a pair of inner rings 2 each having a track 2a in the outer circumference, an outer ring 3 having a plurality of tracks 3a in the inner circumference, a retainer 5 to retain conical rollers 4 in each row at a prescribed interval in a circumferential direction, and sealing devices 10 installed on both end parts of the outer ring 3. The sealing device 10 is composed of a seal case 12 of metal installed on the outer ring 3, and a seal body 20 fixed to the seal case 12 and having a the lip 24 in sliding contact with the outer circumferential surface of a large flange 2b of the inner ring 2. By means of the sealing 10, grease discharged to the bearing end part as the bearing is rotated is guided into the bearing. Grease pushed to the bearing end part in accordance with rotation is thus supplied back into the bearing. Grease enclosed in the bearing is thus effectively utilized, thereby lubrication life can be elongated. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To improve running stability in a high-speed region, and to reduce a wheel load variation caused by the weight of a truck and the vibration of the ground. SOLUTION: A body 26 is displaced toward the inside of a space 35 by a load applied in the vertical direction Z through a slide stopper receiver 17, whereby a duplex angular ball bearing 29 is inhibited from being pressed in the vertical direction Z by the body 26, the load in the vertical direction Z is prevented from being applied to the duplex angular ball bearing 29, and a disc spring 36 is compressed by a load applied in the lateral direction Y, and displaced in the lateral direction Y to receive the load in the lateral direction Y. COPYRIGHT: (C)2008,JPO&INPIT